Safe Drinking 
Water Resources

Below are resources to help you find information about frequently requested water topics and important water safety directions. For more information, please call 847-818-2841.

Boil Order Information

Boil orders are put in place to assure water safety when there is a chance pathogens could have entered into the water supply.

• Cook County boil order procedures and FAQs
• IDPH guidance on food service during a boil order

Flood Emergencies

• CCDPH flood hazard information
• EPA recommendations for water wells
• EPA recommendations for septic systems
• IDPH flood hazard information

How To Disinfect A Water Well

Should a well’s water become contaminated with a variety of bacteria called Coliform or E. coli, or the well’s cap is removed, we recommend the well be disinfected by the well’s owner or a water well contractor. For guidance on how to disinfect your own water well, click here.

How Safe Is My Public Water Supply?

To learn more about your water system, we recommend visiting your village’s webpage for easy-to-understand reports. Additional water reports and data from public water supplies can be found at the following sites:

• US EPA Drinking Water System Database
• Illinois EPA Drinking Water System Database
• IDPH (Non-Community) Drinking Water System Database

Common Water Concerns And Information About Water Testing

Water well owners may have concerns about the changes they are seeing in their water well’s water or just general concerns about drinking water from a groundwater source. This is discussed in USGS’ booklet . Additionally, information from the state on this topic can be found here.

The US EPA sets the maximum limits on contaminants in drinking water to be considered safe. To view these contaminants and information about where these contaminants can come from, click here .

For information about Lead in water supplies, click here .

Well water sampling kits for Coliform and E. coli water testing are available for pick-up from CCDPH’s Rolling Meadows Office. Please call (847) 818-2841 or email [email protected] for more information.

For a list of nearby water testing laboratories with a range of services click here.